Calculating-machine.



.ATENTED JLY 367 390?,

Gn. E. MORSE y GALGULTNG MAGHNE APPLIOATIQN FILED SHEETS-SHEET 1. N

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FATENTED JULY 36S MG?.

G. H. MORSE. GALCULATING MAGHNEL APPLIoATpN FILED MAR. a, 190e.

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LINCOLN, NEBRASKA.v

' "Patented Jury 30,1907.

906. Serial No. 304,856.

To all whom tm/.zy concern.

liet linorim that GEORGE H, irionse, zi citizen o the United 'Strat d, residing in Lincoln, in the county ol Lancaster :ind Starte ul-Nebraska, have invente;l rr non' .5^ and useful. improvement in Crilcnlntin@Machines ol' which the lollowing is a specification.

This nwention relates to calculating Inneliines en1- ployng the 'principle of the slide rule.

it embodies e compiinion wheels revolving I l@ side :about o, conin'ion axis and enrrying on ther.

:tppropriete cooper ng scales. One ol. the nlnet iiezrptcd beoperated bfi hond in eitlrrr directx' v .find 'the oll is oiiven lrietionzrlly by this hond ,zheel, v e irictiennl Contact betr/een the wheels being inode intl broken Whenever desired, .I prei' to nioont the lwllee s upon seoorote shafts wronged in line with enen .f ls ,i to effect the making find breaking ol' they tion eonnict by supporting the shalt oi the hand operated when so it muy be tipped tir-.verd or sway from 'the eoinpiniion wheel. With these wheels` l also eni ploy nnindei; or-iiecinizil point wheel :rdnnted 'Lo inni 2 the p r point ier the plaie g ol the deeinnrl Xt ol the calculation. The nat el' ny explained in the description l i i i l 'this Wheel is b el ow is n d et tioi'i. l' i; longitudinal vertical f' "I is n detnil section on the line 77 ol if is an enlarged pnitinl section oi the seele wheels.

In snid drawing, ll) repres a ol the nm chine, and .l l n, bearing mounted on szxirl busi- :incl

)sting :i rillnrtl. l2 pivotrrlly united to the lil-,rrring ny a pivot 155, sneh pivot b C, horizontally nrrnnged transversely ol', the axis ol the seniors/heels. ln the upper end 'ol the stir. dzrrd l2 is n sopport-v ing n stub shalt lll. This stub shalt projwls into the huh l of that one oi the seule wheels which is by lion/l when ninlaing :lool-iliona composed el a metallic spi ably nnilde oi eellnloid rnd l irl-ying the seules liereinalter more pirrtieulznly des ibed, lforA in spider to the Celluloid rini, the hitter is pro4 nlwl with an inward finge 'i8 adapted-to be bolted to the :ir-ins. ol the spider. VUpon the linb .l5 is mounted the pilot or operating wheel 1S), which is rigidly secured to the nnb l l l l ritinny the by a set screw' 20. The ,rlieel le, l7 is provided with L rocking friction dei.y

21 consisting4 of n` bloefrL ol gage wood attached to n holder 22, preferably nitide in U shape rind supported upon :i pivot 23, the ends ofivhich :1re curr, d in. ears 2l projecting from the central p0rtion o( the spider lo :Lt opposite sides oi the axis. This construction permits the friction block 2l to accommodate llsell to the opposing friction surface with which it is brought in Contact, ond thus to equalize the rre lmtween its ends exerted by the friction block opposing surl'ace. The lrietion block 2l is rith n pair ol' pins 34 projecting backward A rieti surface ol the block and :rduptedto king rnoveinenlsei the block by their coniuet with the ieee o the spider 1G.

".t a. ihollow post or standard also attached to ,le nid in this post n bearing 26 is supported, 1g ironing n depending lngr 27 fitting in the anni) ed to be secured therein at the proper e, se screw 25, the bearing being removable The bearing 2G receives :t e 2t which projects into the hub 30 of another supporting a Celluloid r'nn 32 carrying scales rg the other scalo Wheel. The construction rim is substantially the sinne as that Vnd l?, except that in the' ense of the 32, the friction device is loi-ined directly Y 'der 31,' being in the inttnre of 2r circular l connecting the ends oi the spider arms, zuid the Celluloid rin'i soineivlntt narrower than that of the wheel. The friction suriace ol Athe spider 3l h opposes the lriction block 2l shown ztt 3 l. lo, 1.7 is nernnilly held with its friction bloei'. in contact with the :friction surfaces 33 of the other wheel by n spring HU, one end ol which is ntstandard S7 rising l'roin the buse, und kthe hieh is nti-.relied to nn :Lrnr 38 projecting i'roln nn njnlglit 3S) rising` lronr :i horizontal nrin Al() clinched lo slee\y f surrounding the pivot i3 und nih the hinged standard l2. The zn'ni l() prof nt right ongles to the sleeve mid its inner' ond is .ided with :t iorl which is engaged by the stud V/L lined t the end ol n lever J3, pivoted stationair-ily at il und ndnpted to be depressed by hand. When depri the lever through the sind 12 :rnd the ,exe ll 'forks ille .stnndnrd l2 in such manner its to curry the wheel lo, i7 ont ol notion so lor as the other wheel is .-onoernod, und by inninhrining the pressure on' the low, fill, it nniy be kept ont ol action, notwithslnrniing llio spring 3h. ns long ns desired, und while so nepi ontoi' clion` the wheel is ol course nt liberty lo ln: turned lo nny extent desired. Upon [he release ol the pressure on (he lever "13. the wheel lo, i7 innnedimoli' resumes ils frictionnl contact with the other Wheel. r

il 5h is shown n lnlernlly projecting pin secured in the son* wheel lo, l'. This pin `is adapted to eno projection '12 risingr lroni the lever 53, which.

lll() '30 oi the Wheel 31 and 32.

lever is pivot-ally supported in the right angle extension 54 oi the sleeve 41. The projection 52 is adapted to arrest the wheel 16, 17 when the latter arrives at the zero position and is'inoved in one direction. When the movement oi the wheel is in the other direction, the pin strikes the other sideoi the projection 52 and swings the lever 53 until the top end 55 of said lever 53 encounters the overhanging end 56 of the upright 39. This allows the wheels to complete their cycle of movement and results in their being arrested as soon as they have doneh so. O course, it will be noted that the end 55 of the lever and the over-hanging end ofthe upright 39 are in the same plane, but that that plane is a different one lfrom that in which the projection 52 travels. The lever 5? adjustably positioned by a set screw 57 passing th right 39, as plainly seen at Fig. 2.

1t will be noted that a worm 60 is cut upon the hub In close proximity to this worm is an index wheel 6l supported axially in the gear 62 meshing with said worm and having its bearing 4in the arm 63 projecting from the bearing 26. This wheel rests bygravity in the pinion, and lof course turns with the pinion, but it ir knurled upon its edge so that it may be turned freely and independently by hand. vThe top of the wheel 61 is divided into two sets oi equal spaces, 12 upon each-side. The spaces upon one side ol this Wheel are plus and those upon the other-'side are minus, and they in conjunction with the pointer 64 which is stationarly supported from the bearing 2G and projects over the edge of the Wheel, as shown at Fig. 1, determine the proper place for theplacing oi 'the decimal point in the result of any calculation. The wheel' is customarily set bepointer.

fore beginning the calculation in accordance with the' characteristics of the problem presented. I -these characteristics sum up a plus number, then the wheel is turned accordingly to present the plus side to the 1i they .sum up a minus quantity, then the wheel is turned to the proper point on the minus side and the position of the wheel at the end of the calculation Ashows the operator where the decimal point should be placed in the result.

The rim oi the 'wheel 16,'17, is customarily provided with three different sets of logarithmic scales, e, b and c, the scale a extending entirely arou-nd the wheel, and the scales b and c extending only a portion of the periphery but being duplicated as often necessary to enable them to fill the entire circumference.

:Z corresponding to the scale a oi the other wheel and it is also provided with a scale oi divisions e, dividing the periphery into aliquot parts. The scale 'wheels are provided with separate glass indicators and 7l, indicating 'the zero position. These indicators are held in position by separate trames 72 and 73.

ln theuse oi the invention, the two wheels are brought to the zero position, and then the first factor in the problem, ii it be one of multiplication, is added by moving both wheels counter clockwise' in unison iu'. til the i'actor read upon the scale a has reached-the zero point. The irictional contact between the wheels is then broken and the wheel lli, 17 is moved back to Zero in readiness for the adding of the next factor which is added precisely as the iirst factor by moving -added factor passes zero.

the wheel 31 and 32, the rim is provided with a scale both wheels together counter clockwise until the The iirst wl'iecl beingt then independently returned to zero, another factor can be added in the same manner and so on. AA reverse process serves to subtract the iactors or accomplish the act of division. The scales b and c are employed yin problems involving the square and cube roots as factors respectively.

1, The combination in-a calculating machine, of two companion wheels carrying scales revolving side b v side about a common axis but upon separate shafts. tlie shaft of one wheel being adapted to tip cndwise so as to carry its wheel into Contact with or away from the other wheel.

2. The calculating machine embodying i\vo companion wheels revolving side by side, one of said wheels being mounted upon an axle adapted to tip so as to carry it `toward or away from the other wheel, and being also wheels mounted side by side upon separateaxles and a i support the axle ot' one of said wheels adapted to tip the'axle and wheel so as to make and brcalr the contaci.' between the'wheels.

5. The computing machine wherein are combined two companion whcels'revolvingside by side on separate aigles, one of said wheels being adapted to be operated by hund, and provided with friction devices whereby it may operate the other wheel, said hand operated wheel being also adepted'to be tipped toward or away from the other wheel. I

6. The combination inA a culculating'machine, of two companion wheels revolving side byI side upon separate axles, one of the wheels being movable toward and awuy fiom'.tlie other by n tipping movement of its axle and promachine having; two companion -wheels revolving' side by. side about a common axis, one

of said wheels heini:r adapted to driveI the other at will,

said driving wheel being also provided with means ior arresting it automatically at the zero position when moved in either' direction.

S. The combination in a calculating irachine, of two companion sonic wheels revolving side by side upon separate axles, one of said wheels being an operating wheel and the other a driven wheel, of a decimal point locating device actuated by said driven wheel.

i). '.lhc `ooinbinatien in a calculating machine with the companion scale wheels, of a decimal point locating device.

i 10. The combination in a calculating machine with the companion scale wheels, of a decimal point Alocating device controlled automatically by one of said wheels.

' 1l. 'lhe combination in a calculating machine with the companion scale wheels, of the decimal point indicating wheel havim,r a worm connection to one of the wheels and a pointer cooperating with said decimal point indicating wheel.

' 12. The combination in a calculating machine with thc' companion scale wheels, one of which is the operating wheel and the other a driven wheel, of adcchn-.il point indic-ating wheel and poin'ter, said decimal poi'ni ,"'heel being actuated from the driven wheel by :L worni und gear.

i3. 'lhe combination in a calculating,Y machine, ol' the 'twf companion scale wheels, one of which is the operating wl l, and the other la driven wheel, of a worm and pin.on actuated 'by the driven wheel' and un indicating wheel actu-.lied by said pinion and a pointer cooperating with said indicating wheel.

J4. 'ihe combination' in a calculating machine with the companion scale wheels, one of which is :in Operating r mid wheels being movfilile inward :und fromy the other wheel :1nd the other .fi driven wheel, of a decimal )mini wheel :nifl provided \\'ii,h 1`i'iel.i\m deviws adapted to engage l5 indicating wheel :lelfuated from said driven wheel :nul Hic wlw-r wheel. also adapted to be turned freely by hand. x 1T, 'Fim wuuwmntimi 5 l5. The combination in :1.-calenluing mnehiue, 0f he 1- compzlnon :scale wheels, one of which is the epe; l nimm Ommen nv wheel and the other is driven from the operating wlwel, wheels hein; mumble of a decimal point locating wheel zuid pointer. said dem i f, wheel im'u unmet (u: mwa); jrurn the miller point locating wheel having its surface divided 10 Spaces, pzu't of which are minus und purr plus.

l.' The combination in a ealluulnl'ing machine, of wm companion wheels carrying seules i'evelYriL; de e5 about a common axis but upon separate slml'is, ene m.

:i cnlvulnlineV machine, 01' two revolving side by side the slw EORG lu l. NURSE. 

